[lingben]

Not sure what you mean by 'support'. There is an extremely easy and stable upgrade process as well as guides, forum help, etc. However, it isn't necessary to upgrade frequently if you go on the LTS track.

As for 'reinstalling twice per year' again, not sure where you're getting this from. Linux mint 17.3 is supported until April 2019. That's almost 3 and a half years before you need to upgrade.

http://linux.wikia.com/wiki/Linux_Mint

And in the meantime you get continuous upgrades for software you've installed in an intuitive and easy to use UI.

You ask, 'Are those things there for Linux Mint yet?'

Yes, yes they are :)

[xorcist]

Whatever "support" means for an open source system, but is it recommended and is it well tested? The official documentation said "don't upgrade, do a clean install". That alone made me not consider it at the time.

Three and a half years of support is impressive for a community project and I wonder how they manage. However that matters little for a consumer operating system if you can only do n+1 upgrades anyway. What matters is that upgrades are automated and well tested.